A simple program that I wrote to ask the user to give a string and then the program will remove the vowels and consonants in Modern C++.
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Program Listing
#include <iostream>
#include <string>
bool is_consonant(char ch) noexcept
{
const std::string consonants("bcdfghjklmnpqrstvwxyzBCDFGHJKLMNPQRSTVWXYZ");
return consonants.find(ch) != std::string::npos;
}
bool is_vowel(char ch) noexcept
{
const std::string vowels("aeiouAEIOU");
return vowels.find(ch) != std::string::npos;
}
std::string remove_vowels(const std::string& input) noexcept
{
std::string output;
output.reserve(input.size());
for (char ch : input)
if (!is_vowel(ch))
output += ch;
return output;
}
std::string remove_consonants(std::string& input) noexcept
{
std::string output;
output.reserve(input.size());
for (char ch : input)
if (!is_consonant(ch))
output += ch;
return output;
}
int main()
{
std::string input;
std::cout <<"\n\n";
std::cout << "\tRemove Vowels and Consonants in Modern C++";
std::cout <<"\n\n";
std::cout << "Enter a string: ";
std::getline(std::cin, input);
std::cout <<"\n\n";
std::cout << "String Without Consonants: " << remove_consonants(input) << "\n\n";
std::cout << "String Without Vowels : " << remove_vowels(input) << "\n";
std::cout <<"\n\n";
std::cout <<"\tEnd of Program";
std::cout <<"\n\n";
}
